.TH std::nullopt 3 "2024.06.10" "http://cppreference.com" "C++ Standard Libary"
.SH NAME
std::nullopt \- std::nullopt

.SH Synopsis
   Defined in header <optional>
   inline constexpr nullopt_t nullopt{/*unspecified*/};  \fI(since C++17)\fP

   std::nullopt is a constant of type std::nullopt_t that is used to indicate optional
   type with uninitialized state.

.SH See also

   nullopt_t indicator of optional type with uninitialized state
   \fI(C++17)\fP   \fI(class)\fP
